I'm not sure if it is a "proof" of any sort, but I find the ideas in the माण्डूक्य उपनिषद् (Mandukya Upanishad https://en.wikipedia.org/wiki/Mandukya_Upanishad

I'm not sure if it is a "proof" of any sort, but I find the ideas in the माण्डूक्य उपनिषद् (Mandukya Upanishad https://en.wikipedia.org/wiki/Mandukya_Upanishad https://en.wikipedia.org/wiki/Mandukya_Upanishad ) to be a very interesting point of view. This short text discusses the theory of four states of consciousness: Waking \ Dreaming > Turiya ≝ pure consciousness illuminating these Deep dreamless sleep / These two lectures were very good: - https://www.youtube.com/watch?v=eGKFTUuJppU https://www.youtube.com/watch?v=eGKFTUuJppU - https://www.youtube.com/watch?v=F0dugc4TrlE https://www.youtube.com/watch?v=F0dugc4TrlE And you can read the original text here: https://universaltheosophy.com/sacred-texts/mandukya-upanishad/ https://universaltheosophy.com/sacred-texts/mandukya-upanish...